Benutzerhandbuch - ONLINE USV-Systeme

Maintenance, servicing and faults• The UPS system operates with hazardous voltages. Only qualifiedmaintenance personnel may carry out repairs.• Caution - risk of electric shock. Even after the unit is disconnectedfrom the mains power supply (building wiring socket outlet), componentsinside the UPS system are still connected to the battery and are stillelectrically live and dangerous. Before carrying out any kind of servicingand/or maintenance, disconnect the batteries and verify that no currentis present.• Only persons adequately familiar with batteries and with the requiredprecautionary measures may exchange batteries and superviseoperations. Unauthorised persons must be kept well away from thebatteries.• Caution - risk of electric shock. The battery circuit is not isolated fromthe input voltage. Hazardous voltages may occur between the batteryterminals and the ground. Before touching, verify that no voltage ispresent!• Batteries may cause electric shock and have a high short-circuit current.Please take the precautionary measures specified below and any othermeasures necessary when working with batteries:- remove wristwatches, rings and other metal objects.- use only tools with insulated grips and handles.• When replacing the batteries, use same number and same type ofbatteries.• Do not attempt to dispose of batteries by burning them. This couldcause battery explosion.• Do not open or destroy batteries. Escaping electrolyte can cause injuryto the skin and eyes. It may be toxic.• Please replace the fuse only by a fuse of the same type and of the sameamperage in order to avoid fire hazards.• Do not dismantle the UPS system.• Exhausted batteries should be given to a recycling company.YQ_manual_ger-eng-it_ 2009-09-29.doc209/29/2009, S. Spitzley